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我一直试图在没有运气的情况下在网上到处找到这个答案，也许这会对其他人有所帮助。

我安装了一个名为 socialization 的 ruby​​ gem，它运行良好。它允许用户关注/取消关注/喜欢/不喜欢/提及任何内容。

我遇到的问题是我已经创建了两个链接（一个跟随和一个取消跟随）链接有效，当单击时，记录会完美地从数据库中添加和删除但是当我点击刷新时，无论如何都会发生操作，而无需我单击链接.

尽可能明确的问题是：

如果当前已关注用户并且我刷新页面，则将取消关注（无需单击按钮）..然后当他们取消关注并刷新页面时，他们现在将再次被关注（再次无需单击按钮）

这是代码：

<% if current_user.follows?(@user)%>
   <%= link_to "Unfollow", user_path, :action => current_user.unfollow!(@user), :class => "btn btn-primary"%>
<% else %>
   <%= link_to "Follow", user_path, :action => current_user.follow!(@user), :class => "btn btn-primary"%>
<% end %>

我认为这与以下任何一个有关：浏览器缓存链接或生成的链接是

<a href="/users/1" action="#&lt;Follow:0x103ce81d8&gt;" class="btn btn-primary" rel="nofollow">Follow</a>

并且该操作以任何一种方式执行

编辑：

Rake routes: 

  users_index GET    /users/index(.:format)            users#index
         dashboard_index GET    /dashboard/index(.:format)        dashboard#index
    dashboard_my_rentals GET    /dashboard/my_rentals(.:format)   dashboard#my_rentals
    dashboard_my_credits GET    /dashboard/my_credits(.:format)   dashboard#my_credits
    dashboard_my_invites GET    /dashboard/my_invites(.:format)   dashboard#my_invites
      dashboard_my_faves GET    /dashboard/my_faves(.:format)     dashboard#my_faves
  dashboard_edit_profile GET    /dashboard/edit_profile(.:format) dashboard#edit_profile
           tsmhome_index GET    /tsmhome/index(.:format)          tsmhome#index
        new_user_session GET    /users/sign_in(.:format)          devise/sessions#new
            user_session POST   /users/sign_in(.:format)          devise/sessions#create
    destroy_user_session DELETE /users/sign_out(.:format)         devise/sessions#destroy
           user_password POST   /users/password(.:format)         devise/passwords#create
       new_user_password GET    /users/password/new(.:format)     devise/passwords#new
      edit_user_password GET    /users/password/edit(.:format)    devise/passwords#edit
                         PUT    /users/password(.:format)         devise/passwords#update
cancel_user_registration GET    /users/cancel(.:format)           devise/registrations#cancel
       user_registration POST   /users(.:format)                  devise/registrations#create
   new_user_registration GET    /users/sign_up(.:format)          devise/registrations#new
  edit_user_registration GET    /users/edit(.:format)             devise/registrations#edit
                         PUT    /users(.:format)                  devise/registrations#update
                         DELETE /users(.:format)                  devise/registrations#destroy
              home_index GET    /home/index(.:format)             home#index
                   users GET    /users(.:format)                  users#index
                         POST   /users(.:format)                  users#create
                new_user GET    /users/new(.:format)              users#new
               edit_user GET    /users/:id/edit(.:format)         users#edit
                    user GET    /users/:id(.:format)              users#show
                         PUT    /users/:id(.:format)              users#update
                         DELETE /users/:id(.:format)              users#destroy
                                /show/:id(.:format)               user#show
                    root        /                                 home#index



user controller

  def index
@users = User.all

respond_to do |format|
  format.html # index.html.erb
  format.xml  { render :json => @users }
end


end
  def show
    @user = User.find(params[:id])

    respond_to do |format|
      format.html # show.html.erb
      format.xml  { render :json => @user }
    end
  end
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1 回答 1

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在您的链接action中被认为attribute是link_to tag. 因为action应该作为第二个参数给出。检查文档。获取控制器特定操作的路径 do rake routes。它将列出routes并使用相同的内容，_path并在您的link_to tag.

我认为它可能如下所示：

<% if current_user.follows?(@user)%>
   <%= link_to "Unfollow", unfollow_user_path(:user => @user), :class => "btn btn-primary"%>
<% else %>
   <%= link_to "Follow", follow_user_path(:user => @user), :class => "btn btn-primary"%>
<% end %>

在控制器中：

def follow
  #do something like
  user = User.find(params[:user])
  current_user.follow!(user)
  flash[:success] = "Follwed user #{user.name}"
  redirect_to :back
end

def unfollow
  #do something like
  user = User.find(params[:user])
  current_user.unfollow!(user)
  flash[:success] = "Unfollwed user #{user.name}"
  redirect_to :back
end

在路线：

resources :users do
  collection do
    get 'follow'
    get 'unfollow'
  end
end
于 2013-02-26T15:52:30.217 回答